Carbon feeding means for manifolding machines



' Sept. 17, 1946. R. WQRITZERT CARBON FEEDING MEANS FOR MANIFOLDINGMACHINES Filed April 28, 1945 5 Sheets-Sheet 1 a $5.3.ilid'9 INVENTORROBERT W. RITZERT,

ATTORNEYS p 7, 1946. R. w. RITZERT 2,407,799

CARBON FEEDING MEANS FOR MANIFOLDING MACHINES Filed April 28, 1943 3Sheets-Sheet 2 .J'TEE INVENTOR nonsmw. mrzsa'r imam; ATTORNEY Sept. 17,1946. R. w. RITZERT 2,407,799 CARBON FEEDING MEANS FOR MANIFQLDINGMACHINES Filed April 28, 1945 s Sheets-Sheet z INVENTOR ROBERT WRITZERI;BY

qwuodz ATTORNEYS Patented Sept. 17, 1946 t UNITED STATES PATENT OFFICECARBON FEEDING MEANS FOR MANIFOLDING MACHINES Robert W. Ritzert, Dayton,Ohio, assignor to The Efgry Register 60., Dayton, Ohio, a corporationOhio Application April 28, 1943, Serial No. 484,810

Claims. (01. 197-426) 1 2 The present invention relates to manifoldingtent drivesheretofore performed by the clutch machines, and inparticular to such machines and yet will be of a more simple design withconwhich are adapted to make multiple copies of sequently less expense.

typed or printed material by means of copying Another object of theinvention is to provide ribbons or carbons, particularly those machines5 an adding and tabulating machine having a used in connection withtyping, adding and tabmanifolding attachment with an improved andulating machines and the like. simplified form of mechanism by which thepa- The multiple typing or printing is provided by per moving drive maybe readily separated from a plurality of carbon ribbon or webs which arethe ribbon moving or pin wheel drive, thus fainterleaved transversely ofand between the cilitating synchronizing or other control effects papersheets at the position of the platen. These between these variousmovements. ribbons are caused to move acrossthe paper, 1. e. Theseobjects are carried out in brief in acnormal to the movem nt f he papdurin cordance with the present invention by substithe spacing lineinterval by means of a pin wheel tuting a wholly electrical actuatingmechanism drive. Thusthe carbon ribbons are moved from '15 for t t papermQVing d i and t e e s e of t p p to the other Side in t bon feed insuch a way that one of the drives co r sp d o e line Spacing operationsof may be operated independently of the other or the main typingmachine, the separate movemay be operated Simultaneously and in bothmerits of the ribbons ranging between One-quarcases without requiringcomplicated clutch apter and o e-ha f h paratus and a complicatedcontrol mechanism for When the last line has been typed p the clutch.

the Paper; an automatic ejection mechaf The invention will be betterunderstood when msm brought 1170 play to move the superposed referenceis made to the following description Sheets WebSPf paper rapidlyupwardly considered in connection with the accompanying considerabledistance such that the succeeding drawings in which:

sheet of the superposed paper lengths are placed Figure 1 is aperspective View of a coin/em i typmg Prmtm? Opel" tional typing oradding and tabulating machine Durmg this elecmon spactng feeding 9improved in accordance with the invention. This eratwn of the paper websthe pm Wheel which view is taken from the rear of the machine with feedsthe carbon ribbons across the paper is some of the parts removed inorder to show the moved to make certain that the carbon ribbons partsinvolved in the invention more r y a are free from the typed or printedsheets. It will be understood that the pin wheel does not rotate 2 1s afragmentary elevatmnal of duringtthe typing or printing operation. amodified structural arrangement, partly broken The pin wheel thereforecalled upon to away and a section of the actuating elements for have anumber of diiierent rotary operations, rotating the paper and ribbondrivesextending over different periods of time and these m? 3 IS aelevational end view of the rotary movements may be separated by periodsmechamsm Show? 111 l 2 d taken at pof time during which the pin wheelremains staf a ely the hne 3-? in that figure.

tionary. In the case of a motor driven machine, Flgure 4 15 e VIEWelmllal t0 Flgllre 3 but the motor rotates continuously so that asuitshofvlng a modified structural arran ementable form of clutch mustbe inserted between the Fleure 5 Is an elevatwnal vlew of e i p ovedmotor drive and the intermittently movable pin machine looking om thefront but with the wheel. The control element for this clutch is paperweb brokenaway o how the otherwise normally of a complicated typesincethe clutch hidden P must operate entirely automatically and over Fgure 6 is a view of the ratchet wheel shown difierent time intervalsduring the line spacing n igure looking approximately from the poandeject operations of the machine and must sition of line 66 in t fig rein he direction be kept open during the typing of the succes- 0f thearrowssivelines of print, Figure 7 is a perspective diagrammatic viewThe primary object of the present invention is f the ta s of an e ectrcally operated system to eliminate this complicated clutch and itsconfor actuating the ribbon feeding mechanism.

trol element. A a substitute therefore, a mech- This structure epresentsa modification of the anism is provided of the electrical type whichapparatus shown in the other figures. Will perform all of the functionsof the intermit- 5 Figure 8 shows a modified form of ratchet Genefdl arrcmgeii'ieizt In general, the maniiolding machine of this invention asshown in Figures 1 and 2 is an ate,

tachment to be used in conjunction with a machine adapted to type orprint a-record; such;

as a tabulating and listing machine, typewriting machine or addingmachine. 'Ihe-;mac;hine org, dinarily is provided withtyping-mechanism,- in-i eluding type and a ribbon, together with meansfor printing a single copy of a record or multiple. copies with the useof sheets of carbon paper webs.

In the machine disclosed in this application thefihultiple copies of.the recordj-are-madeupon, multiple paper webs interleaved,with.one-time'copying.ribb-onsbetween the,.multiple' paper webs and. traveling in. a.direction. perpendicular. to

which may consistlof a carbonpaper ribbon is.

quivalent t anjentire. sheetj fjth 'barbon p p r hitherto employed.

Certain machines; for which, my. invention, is

intended, such as .t'ajbulatingandiisting machines are equipped withgmechanisms for automatic iect n..mqvem ntx iimana er o ms; that. formoving the paper Webs a" multiplicity. oiline spacings betweensuccessive forms injorder' to pass from the typing., psitio n, at thebottom of one form, to the't'yping position at the top of 'the' I Theseforms" are provided w'ith, i'e-. versely arranged creases or folds inorder more" conveniently itQl be handled and they are presented to themain-machine and'the manifolding next form.

attachment in this-manner.

These forms are caused' to lie fiat-wiseagainst a vertical frameworkof-the'machine during the typing or-printing operationand whenthis-operation is completed the-forms: are fed upwardly over the framein such away that theywill return to their creased unfolded conditionand be received by a basket ortrough.

The copying. ribbons' employed,

' plate" being secured to the right hand side plate plied from a spoolcompartment 4 of any suitable and well known type, the latter beingsecured to one of the side frames 5 of the machine. The spools areseparated from one another within the compartment 4 and the four strandsof ribbon are carried over suitably positioned and individual guide.rolls 6- mounted; on spindles which project inwardly from the side.plate. .In order to change the direction of the ribbons from thevertical to the horizontal so as to cause the, ribbon, to extend alongthe length of the platen isoecalled turn plate I is employed, this5;:as:;seen;in;Ffigure ,5;, The turn plate may comprise "an;angularlyiishaped sheet of metal having a large fiat plate and beingprovided at the bottomwith a, diag o nally extending edge 8 over whichthe ribbons are caused to move, thus givinterleaved between the multiplepaper sheets on;

In general, I propose-to eliminate clutches and mechanicalipowertransmission mechanisms, replacing them -by-electrical systems of a simplified'arrangement andlparts.

Referring more: particularly to- Figures 1 and 5, reference characterldesignates the platen of the-machine and-the middle line of the-platenwould-represent. the: normal typing or printing position at which thetype arms contact with the paper. The. lengths of paperbeingtype'd i orprinted. are. indicated at 2: and foi' simplicity. only onethickness ofpaper. hasbeen. illu'strate'd' although it will be understood that thereis 1' normally. a: plurality ofpaper sheets being fedsimultaneouslythroughthe machine and. inter-.

leavefd: withcarb'on paper ribbons indicated atl .ing-ethemLaEhorizontal direction as seen in Figures 5 and 7. At the opposite end ofthe platen theribbons which are, now arranged. in stack form due-to; theconverging v action. .of the-turn plate. are caused. to, pass around a.pin. wheel] 9 which isv rotatablgp actuated inthe. man'nen which-fwillbedescribed hereinaften Thus they pin. wheel-serves. to. exert a pull:on,

the various lengths of ribbomandthereioremain, tains the, latter inattautconditioni 'l his tautness isffacilitated by applying] a brakingaction. on the -spools.' Iii. contained-1m the compartment 4., It- Willibe understood} that the ribbons. 3. interleave the paper lengths 2and-whensthema chine, is originally seteupithe ribbons are taken,through; the: spaces formed, betvl ieen the 1 sheetsof paper is; well;understood-in the, art;

A; typewriting machine of thecharacten shown is often; employed; inconnectionlwith a, mani folding; operation in which the paper sheets on,vertically: upward .;over the; frame generally desige "natedgby thenumeral l3. See Figure 5;- This f mga: ay on ist of i umber; f i e; t sl u e nendrvi o ether;- n spaced. a t acumen-sha l i te m diat shaftand.

a l w r: haft; ll; 'Iiheiupper cseshaft *is:

pr vided witha plura. y of .1 s; 8 lee ed-a various distances apart toaccommodateany-del si ed h; f: p per. he: ntermediate: ha t;

6 m y ITVe:as;.a., lllliin f fh b on: sp o s I 5 ,while, that lower shrovidcd wi h apairrofsproclsetgwheels s 1 A chain; zi wis; ca r i vthese; sp ocket: w ls the: upper; ends; o f; the chainzmeshing with anquivalent pain ofywhec smounted ,on 1 he a t l 5; as shown: in Figure,5, ;or;onsha f t l B I as ShQW l' in Figure 1.. Thesprc-ckeiix;chains;2i! are provided; with; outwardly extending;projections- 26w which. register with qspaced;openings; 54 contained inthe, multiple paper web Theerrangement-iS uQ 1tha1tff 1SEthi cha nzarre: mov pwa d y. t e I paper sheets: 2 :areacaused to, begfed in thevertical, direction over: the; uide, rollers 18; The sprcmlget wheels;I9 are actuated by meansof: a gear-22 secured; to the'shaft IT, at the;outside of the frame members.

agear train,23 witha gear 24 whichis mounted on the platen shaft '25:The gear 24 is power driven through a pinion 26-which may bemechanically connected in any suitable, and well knownmanner to themaindrivemotor 21 shown This gear meshe through in Figure 1. A suitable formof clutch is inserted between the motor and the gear train which drivesthe sprocket shaft ll. Consequent- 1y, as the shaft I? is rotated in amanner which will be described in detail, the manifolded paper is pulledfrom the stack H and after passing around the platen I is caused to movevertically upwardly over the rollers l8 by means of the sprocket chainsand the upper end of the paper may be received as a folded stack by thebasket 28. l

The paper is maintained in a relatively flat state as it is movedupwardly over the rollers by means of a skeleton frame which may beformed of a plurality of vertically extending metal strips 29 secured attheir upper ends to a horizontally disposed bar and the lower ends ofwhich carry a short horizontal bar 3 I. This frame, or rather the lowerends thereof press against the paper.

The motor 2! may be secured to one of the side walls 5 of the machineand a shaft 32 connects the motor to a clutch generally indicated at 33.This clutch is of simple and conventional type, employing a groovedcollar 34 which is keyed to the shaft 32 but is permitted to slide alongthe shaft. The collar is provided with teeth (not shown) at its innerend and these teeth are adapted to engage the teeth 35 of the coupling36 which is mounted on a shaft 31in alinement with the shaft 32.nalledin bearings formed by the brackets 38. A worm 39 is secured to theshaft 31, this worm meshing with a worm Wheel 40 which is secured to ashaft 4| journalled at in the side wall.

For moving the collar 34 toward and away from the clutch portion 36 abifurcated yoke 43 is employed, the upper legs of which engage thecircumferential groove in the collar. This yoke is carried on an uprightarm or lever 44 which is pivoted on a shaft 45 intermediate the lengthof the lever. The lower end of the lever is pivotally secured to theplunger or slidable armature 46 of an electromagnet 41 which is alsosecured in any suitable manner to the side wall. The shaft 45 is.l'ournalled at each end in any suitable manner as indicated at 48 andthe nearer end of the shaft as seen in Figure 1 is provided with a crank49. The free end of the crank is pivotally. secured to an extensible armwhich passes through a stationary guide bar 5| provided with a slotwhich received the arm 50.

Directly in line with the arm 55 there is a ratchet Wheel 52 mounted onthe shaft 4| and any one tooth of which is adapted to be engaged by theupper end of the arm 56. The shaft 4| is extended across the rear of thepaper 2 and is provided with one or more paper feeding sprockets I9carrying a sprocket chain 20 which engages the sprocket wheel 2|. As wasexplained in connection with Figure 5 there are normally two sprocketwheel and chain arrangements although only one has been shown in Figure1 and the chain carries projections 29a which register with openings 54in the paper webs 2, thus moving these webs upwardly as the sprocketwheel I9 is rotated. The outer end of the shaft 4| carries a gear 55which meshes with a gear 56 mounted on a shaft 51 journalled in anysuitable and well known manner. A pin wheel 58 is mounted on the shaft57 and the ribbon or the ribbon stack 3 is carried around the pin wheelas indicated.

The armature 4B of the electromagnet is nor- The shaft 31 may bejourmally held in. an extended position by means of a tension spring 59secured to an anchor rod 60. An electrical circuit indicated by thewires 6| is taken from the electromagnet 4'! tea micro-switch 62 of anysuitable and well known character. extends downwardly therefrom andthis: contact is adapted to engage the teeth 63 of a circular element 64which is mounted on a rotatable shaft 55. In addition to the teeth 63the element 64 is provided preferably with a smooth cam surface 66 forreasons which will be explained presently.

Operation of the structure shown in Figur 1 Assume that the shaft 55(lower left hand corner of Figure 1) is connected to an element of themain typing or printing machine which element is controlled in itsmovement such as to provide the proper sequential movements of theribbon feeding and paper feeding mechanism, during the line spacing andeject operations. A machine sold on the market under the name of IBMprovides such an element and assume that when this element is caused tomove during the operation of the IBM machine a rotary effect of apredetermined amount and at the proper time is supplied to the shaft 65.The teeth 53 of the member 64 will successively engage the reciprocablerod of the switch 62 and will cause the circuit 6| to be closed andopened sequentially. If this circuit were connected to a battery (notshown) the current impulses would cause the successive energization andde-energization of the electromagnet 41. Assume for the moment that theeleotromagnet is energized during one of these impulses, the arm 44 iscaused to swing about the shaft 45 and the clutch 33 becomes engaged.The motor 21 is assumed to be continually operating so that motion istransmitted to the worm 39 and the shaft 4| is accordingly rotated.Under these conditions the paper 2 will be caused to move upwardly andthe pin Wheel 58 will also rotate to move the ribbon 3 a predetermineddistance to the right.- This is the effect which takes place during theso-called line spacing operation in which the paper is moved upwardly adistance represented by the distance between two successive lines oftyped imprints and the ribbon is moved a predetermined distance acrossthe paper to present fresh carbon surfaces to the type arm preparatoryfor typing the next line. It is apparent that there are as many teeth onthe element 64 as may be necessary to line space each form until finallythe last line on the form is completed.

'It is then necessary to cause the paper form to be ejected in order tobring the next form into position so that the first line on this formmay be typed. By this time the shaft 65 will have been rotated to aposition such that the cam surface 66 will be directly under the movablecontact member of the limit switch and will hold the circuit 6| closedover a relatively long period of time. Under. these conditions theclutch 33 will be engaged for a corresponding longer period of timecausing the sprocket chains 25 to move the paper upwardly through thepredetermined distance required for the eject operation and at the sametime causing the pin wheel 58 to be rotated as many times as is desiredaccording to the operating schedule of a manifold typing or printingmachine. It will be understood that the shaft 65 is not operatedcontinuously but only The movable contact of the switch that. the paper2 be moved through, a predetermined distance upwardly and the pin wheelshall be rotated a predetermined number of times.

In order to prevent over-running of the sprocket chains '28 and Wheel58- because of theirmomentum at the end of a, spacing or ejectingoperation, spring 59 acts instantaneously upon de-energization ofelectromagnet ll to. rotate shaft 45 and arm 49 counter-clockwise, tothus move the end of arminto the path of the teeth upon ratchet wheel52-. Arm 50 thus. acts. to prevent any further paper-advancing movementof shaft 4| and the parts connected therewith, until electromagnet 4'!is again energized- In Figures 2 and 3 a modified arrangement is shown.These figures illustrate a pair of paper moving chains 20 which aremounted on sprocket wheels I9, the latter being carried on a shaft If.The shaft extends through the side frame member 5 of the machine and isprovided with a gear 61, also a ratchet wheel 68. A pawl 69 pivoted atHI is adapted to engage the teeth of the ratchet wheel, the pawl beingcarried on an arm H which is pivotally connected to the plunger 12 of anelectromagnet E3. The gear 61. is adapted to engage with a gear 14 whichis mounted on the outside of the frame member 5., this gear beingcarried on a shaft. '75 which terminate in a bevel gear 76 pinned to.the. shaft. The bevel gear and its shaft. 15 are. journalled in a casingll secured to the side frame member 5. The bevel gear 16 is adapted tomesh with a bevel gear 18 which is journalled in the bottom portion 59of the casing ll. A. shaft (not shown) extends downwardly from the gear.18 toa pin wheel. 88, the shaft being contained in a protective housing8|. As shown in Figure 2 and 3 the side frame member 5 may be providedat its lower end with an arcuate slot which fits over a portion ofreduced diameter 83 formed at one end of the platen I. An electricalcircuit 84 passes through a battery (not shown) to a microlimit switchindicated at 35. The movable contact member or finger of the switch isadapted to engage the teeth'of a star wheel 86. The latter is mounted ona shaft similar to the shaft 65 as explained in Figure 1 and isconnected to an element of the main IBM machine which will give theshaft the proper amount of rotation at the proper times for controllingthe movements of the paper webs and the pin wheel.

Assume that the 'wheel 86 is being rotated clockwise automatically atthe beginning of the line spacing operation, the circuit through theswitch 85 is closed momentarily due to the upward movement of the fingerso that the electromagnet 13 becomes energized. The arm H is caused tomove counterclockwise thus rotating the; ratchet wheel 68 through acorrespondingly greater distance and this increased movement is carriedto the sprocket wheels. [9 and the pin wheel 80.

Figure 4 shows apparatus which in some re- I spects is similar to thatillustrated in Figure 3 except that a double form of electromagnetrepresented by thee-lemen-t 81, 88 is employed These elements 8.1 and8.8 operate alternately. In this structure there is no necessity for atension sprin 89 (Figure 3) for withdrawing the armature of theelectromagnet because: the elements 81, 88 serve when energized towithdraw the armature of the opposite electromagnet. A double three-wirecircuit indicated at 9-0 is taken from the electromagnets, this-circuitbeing connected to a double contact limit switch. 9|, which isdifferent. from the previously described limit switch- 85 in thatcontact is made when the movable finger moves upwardly and a differentcontact is madewhen. the finger is permitted to move downwardly. A- starwheel 86 similar to that explained in connection with Figure 3 may beemployed but the requirements. as to the operation of the starwheel aredifferent in Figure 4 than that explained in connection with Figure 3.

Thus as the. wheel 85 is rotated clockwise the recip ocable fin er is fit caused. to move. up-

' ardly at which time the. electromagnet 88; be-

the ratchet wheel 68 in the same direction. The

shaft I! on which the sprocket wheels is are mounted is thus given acounterclockwise rotational impulse to cause the paper to move p"-wardly a distance corresponding to the space between the successivetyped lines. At the same time the gear 6'! causes the gear M to rotateclockwise and this rotary effort is transferred through the bevel gear18 to the pin wheel 80 thus causing the. carbon ribbon to move theproper distance to the left as seen in Figure 2.

The same modified operation applies to the condition in which thesuccessive paper forms on the machine are being substituted for oneanother during the eject operation in which case the star wheel 85 isrotated through a greater angular distance causing the pawl 69 to rotatecomes. energized. This operation will cause the pawl 68 to rotate theratchet wheel 68. counter clockwise anditotransfer this movement to thesprocket chains ZEI. and the pin wheel Bil as was explained inconnection with Figure 3. However, as the star wheel 86 is turned a fewdegrees more the movable finger is permitted tov drop; thus opening thecircuit of the electromagnet 88 and closing the circuit of theelectromagnet 87. The latter upon being energized moves the left handend of the pawl arm H upwardly; with a powerful action to a positionready for the pawl 69 to engage the ratchet wheel 63 when theelectromagnet 83 is again energized as the resultof further movement ofthe wheel 86. Consquently, in the structure shown in Figure 4 the arm llis given a strong downward movement by the electromagnet 88 uponrotationof the star Wheel 86 and the 'pawl arm is returned with a powerfulmovement to its initial position by the electromagnet 81' ready toengage the succeeding tooth on the ratchet wheel upon furtherenergization of the electromagnet 88. Due to the increased positivenessof the movement of the pawl arm "H by the use of the two opposedelectromagnets, the arrangement shown in Figure 4 gives a much quickeraction than that shown in Figure 3.

Figures 6 and 7 show still other structure which may be employed. formoving the ribbons during the line spacing and eject operations of the.typing machine. The structures shown in these figures differ from thoseexplained in the other figures in that mechanism is provided for drivingonly the ribbon feeding pin wheel and no. Provision has been illustratedby which to drive the paper fed sprocket chains. A sole oid 92 may beemployed, this solenoid being secured by a.v bracket 93 to one of theside frame members 5. The solenoid is horizontally disposed and containsa slidable plunger or armature 94 provided with a rod extension 95. Thelatter is pivotally connected to a horizontal arm 96 which is rotatablymounted at the upper end'of a, shaft 91 carrying at its lower end aribbon feeding pin wheel 98. A downwardly extending rod 99 is secured tothe arm as he a pawl I'is pivotally mounted on the rod 99. v Thearrangement is such that when the electromagnet 92 becomes energized ina manner explained hereinafter the rod moves inwardly, causing the arm98 to rotate counterclockwise as seen from the top. This movement causesthe pawl I00 to engage the teeth of a ratchet wheel IOI which is securedto the shaft 91. Thelatter is therefore given a counterclockwiserotation. As the pin wheel 98 is rotated counterclockwise the ribbon 3is pulled. to the left. As in th case of the other constructions, theelectromagnet 92 is intermittently energized, the movements taking placeduring the line spacing and eject operations. This can be accomplishedby'meansof the switch 85, the movable contact finger of which isoperated the proper number of times by a star wheel I02. The latter maybe connectedon the shaft I03 of the platen I so that as the platen isrotated a few angular degrees during the l ne spacing operation, and anumber of complete revolutions during theeject operation, theelectromagnet 92 is energized to move the ribbon 3 the proper distanceacross the paper webs. As in the other figures, this ribbon mayconstitute a number of strands interleaved with the paper forms.

In Figure 8 I have shown a modified form of the structure described inconnection with Figures 6 and 7 and which is intended to actuate theribbon feeding pin wheel 98 when the solenoid 92 is intermittentlyenergized through the switch 85. The pawl I00, instead of continuallycontacting with the ratchet wheel l0l, as in Figure 6, is now caused tobe moved away from the ratchet wheel by means of a bar I03a providedwith a pin I04 on which the inner surface of the pawl I60 rides.

It is apparent that as the arm 95 swings on its shaft 51 in response tothe reciprocations of the rod member 95 and the further outwardly thepawl IE0 is moved by the arm 03 the fewer the number of teeth on theratchet IBI will be causedto engage with the pawl. Consequently, therate at which the ratchet wheel IOI is rotated will depend on thesetting of the pawl member I00 which is brought about by a trans- Versemovement of the bar I03. The latter may be operated by hand to anyadjusted position depending on the rate that it is desired to rotate thepin wheel 98 in response to each reciprocation of the solenoid operatedrod 95.

It is apparent that the pin wheel operating structure shown in Figure'I'may be used either with or without mechanism for providing an ejectoperation. If an eject operation is desired, suitable and well knownmechanism may be provided for rotating the sprocket shaft I! in timedrelation with the rotation of the star wheel I02.

A suitable inertia device for preventing repeated actuations of switch85 when wheel I05 is turned above a predetermined minimum angular rate,is shown in Figure 9. Assume that a notched wheel I05 is carried on ashaft I05 which rotates in timed relation with mechanism for operatingthe paper feeding shaft ll. Assume also that the micro-switch 85 isconnected to the solenoid 92 (Figure 7) and has the same function as wasexplained in connection with that figure. A heavy metal bar It! pivotedat I08 is positioned between the contact of the switch 85 and the wheelI05. A pin I09 is suspended from the bar I0! and is adapted to projectinto the notches H0 of the wheel. If the wheel until the latter has cometo rest.

.wheel I05 is rotated rapidly, as'for exampleduring an eject operation,the, pin I09 is forced from the notch H0 and dueto the inertia of thebar I01, the pin will'not re-entera notchin the Under these conditions,theswitch 35will have been operated only once during the complete ofribbon 3 (Figure 7) 'has been pulled along the platen during'theeject-operation. 1

It is apparent that any desired relative rate of movement between, thecarbon ribbon and the paper web may be obtained forla given rate ofrotation of wheel I05, by predetermining the weight of the bar I01, thelength of the bar including the position of the pivot, also the depth ofthe notches and the numb-er of notches in the wheel I65.

From the foregoing it is evident that I have disclosed inexpensive yeteifective apparatus for moving the paper webs upwardly the requisitedistance during the eject operation and also for pulling the ribbon orribbons along the platen the proper distances according to the type ofoperation. The control in all of these cases is constituted of a simpleelectrical switch cooperating with a star wheel or cam which isautomatically actuated in accordance with the movements of the machineparts. The various elements which are employed for providing the paperand ribbon drives are standard parts, requiring no special machine workand these drives are of the most direct and effective character.

It will be understood that I desire to comprehend within my inventionsuch modifications as come within the scope of the claims and theinvention.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is:

1. A typing machine including a platen, means for moving paper over theplaten, a carbon ribbon extending crosswise of the paper and lengthwiseof the platen, means for moving said carbon ribbon over the paper bothof said paper moving means and ribbon moving means including anelectromagnet in common, and means for energizing said electromagnetintermittently in accordance with line spacing and sweep feedingoperations of the machine, said last mentioned means including anelectrical circuit and a switch therein, also including a star wheeladapted to intermittently operate said switch in accordance with thedesired line-spacing and sweep feeding operations of the machine.

2. A typing machine including a platen, means for moving paper over theplaten, a carbon ribbon extending crosswise of the paper, and axiallyalong of the platen at the typing position, means for moving the carbonribbon during predetermined operations of the machine, said paper movingand ribbon moving mechanism including a pair of solenoids connected inopposition within an electrical system, cores slidable in saidsolenoids, means connecting said cores for movement in opposition toeach other and a ratchet mechanism including an arm connected to saidcore connecting means for actuating said paper onroe 11 moving .meansand saidlr'ibbon moving means, said' solenoids being adapted to beenergized. in sequence to effect line spacing andsweep f edingoperations of the machine. I r

3. A typing machine including a platen,-means for moving paper over theplaten, means for moving a transfer ribbon transversely across-the paperaxially of said platen, means: eflecting movement of said" paper movingmeans and said ribbon moving means inunison and including a ratchetwheel, a pawl operable to movesaid wheel in step by-s'tep increments, anelectromagnet connected to operate said pawl-to ad vance said paper andribbon, and-a second electromagnet connected to retract said pawl.

4. In atyping machine including a platen,

means for moving paper over the platen, means with line spacing andsweep feeding operations of the machine, said energizing means includinga circuit, a switch in said circuit, and a star wheel adapted tointermittently operate said switch in accordance with desiredline-spacing and sweep feeding operations.

means operating said first and said second means step by step in unison,including an electromagnet', a switch in circuit with and adapted toenergize said electromagnet, a star wheel operable in accordance withthe desired line spacing and sweep. feeding operation of the machine andan inertia arm positioned to be oscillated by rotation of'said wheelbelow a predetermined rate, to in- 2:0 termittentlyactuate said switchin its oscillations, said arm being insensitive to rotation of said;wheel abov said predetermined rate.

ROBERT RITZERT.

